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Finding the Fourth Proportional to 98,625.16, 135,965.10 and 68,358.52

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Solution

The fourth proportional to 98,625.16, 135,965.10 and 68,358.52 is: 94,239.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.16 : 135,965.10 = 68,358.52 : x
  2. Step 2: Convert to fraction form
    98,625.16/135,965.10 = 68,358.52/x
  3. Step 3: Cross multiply
    98,625.16x = 135,965.10 × 68,358.52
  4. Step 4: Simplify right side
    98,625.16x = 9,294,373,007.65
  5. Step 5: Solve for x
    x = 9,294,373,007.65/98,625.16
  6. Step 6: Final answer
    x = 94,239.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.